Problem:
When i try use dlna browser of this tv with vbox, any try start watching channels ends with error something like: Check network connection.
Sometimes it even shows 1-2sec desired channel, but error still popup.

Solution is:
Open vbox setiings:
Streaming - Advanced Settings - Uncheck option: Limit single channel streaming per UPnP device and press Submit button.
After this channels on vbox opened fine with this tv.

P.S. At the same time LG 42ln655v and WD TV Streaming, vlc android open channels without problems.
P.S.S Also we have radio channels, but samsung or lg can't open it.